CVE - CVE-2021-32635

CVE-ID
CVE-2021-32635	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394 URL:https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394 GENTOO:GLSA-202107-50 URL:https://security.gentoo.org/glsa/202107-50 MISC:https://github.com/sylabs/singularity/releases/tag/v3.7.4 URL:https://github.com/sylabs/singularity/releases/tag/v3.7.4
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210512	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210512)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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